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Project Name: Water Main Replacement 2022 – Amendment No. 1 Page 1 Project No.: WA2203.451 Rev. 5/13/2024 AMENDMENT NO. 1 TO CONSTRUCTION MANAGEMENT SERVICES AGREEMENT WATER MAIN REPLACEMENT 2022 Project No. WA2203.451 Council Date: April 10, 2025 THIS AMENDMENT NO. 1 (“Amendment No. 1”) to the professional services agreement dated October 9, 2024, (the “Agreement”) is made by and between the City of Chandler, an Arizona municipal corporation, (“City”) and Dibble CM, LLC, an Arizona Limited Liability Company, (“Consultant”), on this ______ day of ___________________, 2025, (“Effective Date” by Clerk). (City and Consultant may individually be referred to as “Party” and collectively referred to as “Parties”). RECITALS A. The Parties entered into the Agreement for Construction Management Services (“Services”) for the Water Main Replacement 2022 project. B. The Parties have determined that it is necessary and desirable for the Consultant to perform services for the City under the terms and conditions set forth in this Amendment No. 1 and the Agreement. AGREEMENT NOW, THEREFORE, in consideration of the premises and mutual promises contained in the Agreement and this Amendment No. 1, the Parties agree to amend and modify the Agreement as follows. SECTION I – CONSULTANT’S SERVICES The Consultant’s Services are modified as described in the Exhibit "A" attached to and made part of this amendment by reference. Project Name: Water Main Replacement 2022 – Amendment No. 1 Page 2 Project No.: WA2203.451 Rev. 5/13/2024 SECTION II – PERIOD OF SERVICE The Period of Service is increased by 365 calendar days for a revised total of 730 calendar days. SECTION III – PAYMENT OF COMPENSATION AND FEES The Fees are increased by $862,802.50 and will be payable in accordance with Exhibit "B" attached to and made part of this amendment by reference, for a revised total not to exceed $939,177.50. SECTION IV – CONFLICT AMONG DOCUMENTS The Agreement, this amendment, and any previous amendments constitute the complete agreement between the Parties concerning the subject matter of the Agreement and replace any prior oral or written communications between the Parties. If a conflict or ambiguity arises between the Agreement and this amendment, the instrument in the following order prevails and controls: (1) this amendment; (2) any previous Amendments from most recent to oldest; and (3) the Agreement. SIGNATURE PAGE TO FOLLOW Project Name: Water Main Replacement 2022 – Amendment No. 1 Page 3 Project No.: WA2203.451 Rev. 5/13/2024 IN WITNESS WHEREOF, the Parties hereto have caused this Amendment No. 1 to be duly executed. Each Party warrants and represents that its respective signatories whose signatures appear below have been and are on the date of signature duly authorized to execute this Amendment No. 1. “CITY” CITY OF CHANDLER MAYOR RECOMMENDED BY: Daniel Haskins, P.E. CIP City Engineer APPROVED AS TO FORM: City Attorney ATTEST: City Clerk Seal “CONSULTANT” DIBBLE CM, LLC Signature Date Print Name Title Signer Email Address 3/14/2025 KC Brandon President kcbrandon@dibblecm.com Project Name: Water Main Replacement 2022 – Amendment No. 1 Page 4 Project No.: WA2203.451 Rev. 5/13/2024 Amendment No. 1 (cont.) Project No. WA2203.451 These changes result in the following adjustments of Agreement amount and/or time: Amendment authorized by Owner name: Jeff Auker Date: 2/25/2025 Consultant email: kcbrandon@dibblecm.com Original Agreement amount: $76,375 Previous Amendment(s) total: $0 Last Agreement amount approved by Council: $0 This Amendment: $ 862,802.50 This Amendment + previous Amendment(s) not approved by Council total: $ 862,802.50 Revised Agreement total: $939,177.50 Council Approval Required (yes indicates approval required) Yes No Amendment(s) total over $100,000: ☒ ☐ Amendment(s) total causes Agreement to exceed $100,000: ☒ ☐ Agreement Time Notice to Proceed (NTP) date for Original Agreement: 10/23/2024 Agreement time prior to this Amendment (including previous amendments): 365 Calendar Days Net change resulting from this Amendment: 365 Calendar Days Revised Agreement time (including this Amendment): 730 Calendar Days Council Approval (if applicable) Council Approval Date: 4/10/2025 cc: Project Manager, Consultant, Owner, File Project Name: Water Main Replacement 2022 – Amendment No. 1 Page A-1 Project No.: WA2203.451 Rev 3/12/2024 EXHIBIT A SCOPE OF WORK 1 EXHIBIT “A” Amendment 1 CONSTRUCTION MANAGEMENT SCOPE OF SERVICES WA2203.451 CITY OF CHANDLER WATERMAIN REPLACEMENT PROJECT TASKS 3. CONSTRUCTION MANAGEMENT A. Task 3.1 Weekly Construction Meetings i. Consultant must conduct weekly construction meetings. Each meeting includes agenda and minutes; Request for Information (RFI); Shop Drawing; Request for Information (RFI); Field Directive (FD); Material Certification; and Allowance Logs. Consultant assumes (36) thirty six weekly meetings will be held. B. Task 3.2 CPM Schedule i. Consultant must review Contractor’s monthly CPM schedule updates submitted with each payment application, identify CPM tasks behind schedule that may affect critical path items, project substantial and final completion dates and initiate correspondence to City regarding those tasks. Consultant assumes (8) eight reviews of updated CPM schedule. C. Task 3.3 Requests for Information (RFI’s) i. Consultant must review, evaluate, and respond to Contractor Requests for Information (RFI’s); and prepare and maintain a submittal log of all RFI’s. Consultant assumes a (15) fifteen RFI responses. D. Task 3.4 Shop Drawing Submittals i. Consultant must review, evaluate, and respond to Contractor shop drawing submittals; and prepare and maintain a submittal log of all shop drawing submittals. Consultant assumes (20) twenty reviews. E. Task 3.5 Requests for Proposal (RFP) i. Consultant must prepare Requests for Proposal (RFP) documents detailing requested additional work tasks; review and evaluate Contractor RFP responses (cost derivatons) with approval recommendations; and prepare and maintain a submittal log list of all RFP’s. Consultant assumes (7) seven RFPs. F. Task 3.6 Field Directives (FD’s) i. Consultant must prepare Field Directive (FD) documents detailing requested additional work tasks; review and evaluate Contractor FD responses with approval recommendations; and prepare and maintain a submittal log list of all FD’s. Consultant assumes (7) seven FD’s. G. Task 3.7 Contractor Payment Applications i. i.Consultant must review and evaluate Contractor monthly payment applications and make recommendation for payment; maintain a weekly record of constructed pay quantities and compile monthly totals; and coordinate payment application with the City quantity report and the inspectors’ daily logs. Consultant assumes (8) eight payment applications, with (2) two reviews each. 2 H. Task 3.8 Field Coordination i. Consultant to assist in coordinating the installation of waterlines to residents’ properties. ii. Maintain communication and act as a liaison with contractor, residents, public outreach firm, and city. 4. CONSTRUCTION INSPECTION a. Task 4.1 Inspection Services i. Consultant must provide weekly construction inspection to verify materials and installations conform to construction documents; prepare daily inspection reports documenting Contractor construction activities and progress during field inspection visits; and perform intermittent erosion control inspections. Consultant assumes 2 inspectors full time 40 hrs. per week for (9) nine months. Consultant assumes 380 hrs. of overtime for project duration. b. Task 4.2 Project Closeout i. Consultant must compile non-conformance list prior to Substantial Completion; schedule and conduct Substantial Completion inspection; prepare Substantial Completion punch list generated from Substantial Completion inspection; track items on punch list and note completed items; and complete and distribute Substantial Completion certificates. ii. Consultant must schedule and conduct Final Completion inspection; and complete and distribute Final Completion certificates. iii. Consultant must provide all documents in an electronic version that matches the City’s filing system, so it can be imported into City’s files. iv. Consultant must participate in a meeting with City staff and Designer to review request for information log to discuss lessons learned during the course of construction. 5. MATERIALS TESTING a. Task 5.1 Quality Assurance (QA) Test Program i. Consultant must coordinate with Contractor’s testing representative to obtain required QA tests and sample; complete sampling and compaction testing of subgrade (including lime-stabilized subgrade base), aggregate base and asphalt concrete materials in new asphalt concrete pavement areas; complete sampling and compaction testing of subgrade, aggregate base (where required) and concrete for new curbs, gutters, sidewalks and concrete pavement and structures; and complete sampling and compaction testing of backfill for new irrigation, sewer, water, storm drain pipe, and dry utilities. 6. RECORD DRAWINGS a. Task 6.1 Record Drawings i. Review and monitor Contractor’s weekly updates on red-line drawing set. 3 ASSUMPTION, CLARIFICATIONS, AND EXCLUSIONS 1. Application fees for City reviews and permits will be paid by CITY. 2. The Owner’s Allowance will only be utilized with prior written approval from the City representative. Project Name: Water Main Replacement 2022 – Amendment No. 1 Page B-1 Project No.: WA2203.451 Rev. 3/12/2024 EXHIBIT B FEE SCHEDULE Task Cost 3 3.1 94,080.00 $ 3.2 9,600.00 $ 3.3 23,895.00 $ 3.4 24,040.00 $ 3.5 16,535.00 $ 3.6 20,440.00 $ 3.7 17,040.00 $ 3.8 Field Coordination for Private Property Waterline Installations 28,095.00 $ 233,725.00 $ 4 4.1 528,327.50 $ 4.2 41,800.00 $ 570,127.50 $ 5 5.1 - $ - $ 6 6.1 13,950.00 $ 13,950.00 $ 7,500.00 $ 7,500.00 $ - $ - $ 15,000.00 $ WA2205.451 CITY OF CHANDLER WATERMAIN REPLACEMENT (NOT TO EXCEED FEE) RECORD DRAWINGS SUBTOTAL TASK 4: QA Test Program ( See below under subconsultant) MATERIALS TESTING Inspection Services CONSTRUCTION INSPECTION SUBTOTAL TASK 2: SUBTOTAL TASK 3: Project Closeout Weekly Construction Meetings SUBTOTAL TASK 5: SUBTOTAL SUBCONSULTANTS: J2 Landscape Arcitecht (Allowance) ACS (QA Test Program) (Allowance) SUBCONSULTANTS Field Directives (FD's) Contractor Payment Applications Record Drawings CONSTRUCTION MANAGEMENT SCOPE OF SERVICES FEE SCHEDULE EXHIBIT "B" Amendment 1 Description Requests for Proposal (RFP) CPM Schedule Requests for Information (RFI's) Shop Drawing Submittals CONSTRUCTION MANAGEMENT - $ 30,000.00 $ 30,000.00 $ 862,802.50 $ Owner's Allowance SUBTOTAL ALLOWANCES: PROJECT TOTAL: ALLOWANCES Direct Expense Allowance Page 1 WA2203.451 Exhibit C Staff Hours Construction CM Services Phase 1.xlsx Dibble CM Staff Hours and Fee By Task Billing Rate 240.00 $ 185.00 $ 170.00 $ 152.00 $ 228.00 $ 141.50 $ 212.25 $ 110.00 $ Task Sr. Resident Engineer Construction Manager Project Engineer Senior Construction Inspector Senior Construction Inspector Overtime Construction Inspector Construction Inspector Overtime Administrative Assistant Total Task Hours Total Task Fee Construction Management Weekly meetings 160 98 195 40 493 94,080.00 $ CPM schedule reviews 18 12 18 48 9,600.00 $ Pay Apps 18 12 54 12 96 17,040.00 $ Request for Information reviews 40 15 60 12 127 23,895.00 $ Shop drawings/submittals reviews 50 12 50 12 124 24,040.00 $ Request for Proposals (RFP) 24 7 48 12 91 16,535.00 $ Field Coordination 35 35 70 12 152 28,095.00 $ Field Directives (FD) 35 12 50 12 109 20,440.00 $ Inspection Services Construction Inspections 1525 230 1500 150 3,405 528,327.50 $ - $ - $ Close Out Pre-Final Inspection and Punch List 30 10 30 70 14,150.00 $ Final Inspection 15 10 15 40 8,000.00 $ Record drawings/review contractor final redline drawings 25 20 25 70 13,950.00 $ Closeout Documents 25 10 50 30 115 19,650.00 $ Sub-Contractors ACS Allowance 7,500.00 $ J2 Allowance 7,500.00 $ - $ - $ - $ Total Hours 475 253 665 1525 230 1500 150 142 4,940 Total Fee 114,000.00 $ 46,805.00 $ 113,050.00 $ 231,800.00 $ 52,440.00 $ 212,250.00 $ 31,837.50 $ 15,620.00 $ 832,802.50 $ Fee Summary Resident Engineer - Roger Teske 114,000.00 $ Construction Manager - Marc Stern 46,805.00 $ Project Engineer - Julia Cruz 113,050.00 $ Inspectors Peter Carpentieri/Saige Born 528,327.50 $ Administrative Assistant Jennifer Drury 15,620.00 $ Sub-Contractors 15,000.00 $ Owner Allowance 30,000.00 $ Total 862,802.50 $ Exhibit C Phase 1 • This is a time and materials proposal based on the current scope of work and schedule. • Prices are all-inclusive. There are no additional charges for mileage or other incidental expenses. • Proposal is for construction administration and inspection services based on CMAR schedule 2/26/2025